strain

n.张力；紧张 v.拉(绷)紧；拉伤

stow, stowage, stowaway, Str, straddle, strafe, straggle, straggler, straggling, straggly, straight, straight fight, straight man, straight-edge, straighten, straightforward, straightforwardly, straightforwardness, straightness, straightway, strain every nerve, strained, strainer, strait, strait-jacket, strait-laced, straitened, strand, stranded, strange, strangely, strangeness, stranger, strangle, stranglehold, strangler, strangulate, strangulation, strap, straphanger,